Auto Loan Calculator 120 Months

This auto loan calculator helps you determine your monthly payments for a 10-year (120-month) auto loan. Simply enter your loan amount, interest rate, and down payment to see your estimated monthly payment and total interest paid.

How to Use This Calculator

Using this auto loan calculator is simple:

Enter the loan amount you're requesting (e.g., $25,000)
Input your annual interest rate (e.g., 5.25%)
Specify your down payment amount (if any)
Click "Calculate" to see your monthly payment and loan details

The calculator will show you:

Your estimated monthly payment
Total amount paid over the loan term
Total interest paid
A breakdown of your loan payments over time

Formula Explained

The auto loan calculator uses the standard loan payment formula:

Loan Payment Formula

M = P [ i(1 + i)^n ] / [ (1 + i)^n - 1 ]

Where:

M = Monthly payment
P = Principal loan amount (loan amount - down payment)
i = Monthly interest rate (annual rate / 12 / 100)
n = Number of payments (120 months)

This formula calculates the fixed monthly payment for a loan with a fixed interest rate over a specified period.

Worked Example

Let's calculate a 120-month auto loan with these parameters:

Loan amount: $25,000
Annual interest rate: 5.25%
Down payment: $2,500

Principal (P) = $25,000 - $2,500 = $22,500

Monthly interest rate (i) = 5.25% / 12 / 100 = 0.004375

Number of payments (n) = 120

Using the formula:

Calculation Steps

M = $22,500 [ 0.004375(1 + 0.004375)^120 ] / [ (1 + 0.004375)^120 - 1 ]

M ≈ $22,500 [ 0.004375 × 1.0546 ] / [ 1.0546 - 1 ]

M ≈ $22,500 [ 0.004662 ] / 0.0546

M ≈ $22,500 × 0.0854 / 0.0546

M ≈ $22,500 × 1.564

M ≈ $35,253.50

Your estimated monthly payment would be approximately $352.54.

Frequently Asked Questions

How accurate is this auto loan calculator?: This calculator provides an estimate based on the information you provide. For exact figures, consult with your lender or financial advisor.
Can I use this calculator for any loan term?: This calculator is specifically designed for 120-month (10-year) auto loans. For different loan terms, use our general loan calculator.
Does this calculator account for taxes and fees?: No, this calculator provides an estimate of the principal and interest payments. Additional taxes and fees may apply and should be discussed with your lender.
What if I want to make extra payments?: This calculator shows the standard monthly payment. If you make extra payments, your loan term will be shorter, and you'll pay less in interest.
Is the interest rate fixed or variable?: This calculator assumes a fixed interest rate. If your loan has a variable rate, the payments may change over time.